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3 years ago

EASY QUESTIONS! Whats 1+1?

Mathematics

2 answers:

frozen [14]3 years ago

7 0

Hmm I would have to say I'm sorry if I get this wrong but it's super difficult but I think it's 11?? I'm not sure LOL

lord [1]3 years ago

5 0

The answer would be 2

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Order the values least to greatest 8,|3|,-5,|-2|,-2 plz help

Svetach [21]

Just flip them around: -2 -2 -5 3 8

6 0

3 years ago

Read 2 more answers

Your company is going to build 4 factories that will use the latest robot technology. One will make prefab buildings, another se

ch4aika [34]

Answer:

a) 230300 ways

b) Check Explanation

Step-by-step explanation:

a) This is a combination problem,

We require how many ways 4 factories be placed among 50 states.

Mathematically, that is

⁵⁰C₄ ways = 230300 ways

b) If you have no idea which states will be chosen, what is the probability that all 4 factories will be located in the mid-Atlantic region.

This can be done in two ways

Method 1

The mid Atlantic region is one of 9 geographic divisions in the US

Probability of 1 factory being located in this geographic region = (1/9)

The probability of the 4 factories being in just this region = (probability of locating one factory in this region)⁴ = (1/9)⁴ = 0.0001524

Method 2

The mid Atlantic region contains only 3 out of 50 states. (New York, New Jersey, Pennsylvania)

Probability of 1 factory being located in one of the 3 stares = (3/50)

Probability of locating all four factories in one of the states in this region = (3/50)⁴ = 0.00001296.

6 0

3 years ago

The American Academy of Periodontology released a survey, revealing that 27% of US adults admit they lie to their dentist about

AnnZ [28]

Answer:

Null Hypothesis, $H_0$ : p = 0.27

Alternate Hypothesis, $H_A$ : p > 0.27

Step-by-step explanation:

We are given that the American Academy of Period ontology released a survey, revealing that 27% of US adults admit they lie to their dentist about how often they floss their teeth.

Periodontist Dr. Garcia believes that the percentage seems low, so he decides to conduct his own hypothesis test to determine the true proportion.

Let p = % of US adults who admit they lie to their dentist about how often they floss their teeth

So, Null Hypothesis, $H_0$ : p = 0.27

Alternate Hypothesis, $H_A$ : p > 0.27

Here, null hypothesis states that the % of US adults who admit that they lie to their dentist about how often they floss their teeth is equal to 27%.

On the other hand, alternate hypothesis states that the % of US adults who admit that they lie to their dentist about how often they floss their teeth seems low and is more than 27%.

Also, the test statistics that would be used for conducting this hypothesis test will be One-sample z proportion statistics.

7 0

3 years ago

Determine what values must be excluded from the domain of (x^2 + 1)/x

Makovka662 [10]

You can not call it domain cause it is only an expression not equation
you have to exclude 0 from domain

7 0

3 years ago

Factor Quadratics

san4es73 [151]

Step-by-step explanation:

We have x² + 9x + 18 = (x + 6)(x + 3).